Earthquake with magnitude of ML 1.5 on date 24-09-2021 and time 17:20:27 (Italy) in region Costa Ionica Crotonese (Crotone)

A magnitude ML 1.5 earthquake occured in region: Costa Ionica Crotonese (Crotone), on

  • 24-09-2021 15:20:27 (UTC)
  • 24-09-2021 17:20:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.255, 17.217 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Strongoli KR 14 6571 6571
CirĂ² Marina KR 14 14902 21473
Melissa KR 18 3549 25022
CirĂ² KR 20 2936 27958
Rocca di Neto KR 20 5687 33645

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Crotone (62178 inhabitants)
66 Km NE of Catanzaro (90612 inhabitants)
83 Km E of Cosenza (67546 inhabitants)
83 Km E of Lamezia Terme (70714 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.5 2021-09-24
15:20:27
39.2548 17.2168 10 2021-09-24
15:32:51
Sala Sismica INGV-Roma 95837421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-24 15:20:27 ± 0.42
Latitude 39.2548 ± 0.0126
Longitude 17.2168 ± 0.0232
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95837421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2060
Semi-minor axis of confidence ellipse (meter) 1340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 2060
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 292
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.56657
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 95837421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-24 15:32:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SGG.HHZ. 2021-09-24T15:21:48.72 3.0 undecidable manual Sn -1.67 0
IV.CAGR.HHZ. 2021-09-24T15:21:46.56 3.0 undecidable manual Sg 5.68 0
OT.OT05.EHZ. 2021-09-24T15:21:43.68 3.0 undecidable manual Sn 0.84 0
IV.ESCV.HHZ. 2021-09-24T15:21:33.38 3.0 undecidable manual Sn -0.86 0
IV.MILZ.HHZ. 2021-09-24T15:21:25.11 3.0 undecidable manual Sg 5.05 0
IX.PGN3.HHZ.02 2021-09-24T15:21:00.08 3.0 undecidable manual Pg 3.63 0
IV.CELI.HHZ. 2021-09-24T15:20:46.45 0.3 undecidable manual S 285 0.5666 50 -0.58 63
IV.SELL.HHE. 2021-09-24T15:20:45.77 0.6 undecidable manual S 239 0.5315 50 -0.21 47
IV.SERS.HHZ. 2021-09-24T15:20:44.88 0.6 undecidable manual S 242 0.4641 50 0.89 38
IV.PIPA.HHZ. 2021-09-24T15:20:42.06 0.3 undecidable manual S 307 0.3858 50 0.38 70
MN.TIP.HHZ. 2021-09-24T15:20:41.18 0.6 undecidable manual S 258 0.3633 50 0.19 49
IV.CELI.HHZ. 2021-09-24T15:20:38.64 0.6 positive manual P 285 0.5666 50 -0.17 47
IV.SELL.HHE. 2021-09-24T15:20:38.22 0.1 undecidable manual P 239 0.5315 50 0.02 98
IV.SERS.HHZ. 2021-09-24T15:20:36.92 0.1 positive manual P 242 0.4641 50 -0.13 96
IV.PIPA.HHZ. 2021-09-24T15:20:35.76 0.1 positive manual P 307 0.3858 50 0.04 100
IV.LADO.EHZ. 2021-09-24T15:20:35.37 0.6 undecidable manual S 279 0.1862 116 -0.2 50
MN.TIP.HHZ. 2021-09-24T15:20:34.85 0.6 negative manual P 258 0.3633 50 -0.47 46
IV.LADO.EHZ. 2021-09-24T15:20:32.42 0.1 positive manual P 279 0.1862 116 0.23 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LADO.EHN. ML:1.7 0.00039309365 0.2176 AML other m 2021-09-24T15:20:35.49
IV.LADO.EHE. ML:1.8 0.0004303645 0.3072 AML other m 2021-09-24T15:20:35.46
MN.TIP.HHN. ML:1.6 0.000125 0.32 AML other m 2021-09-24T15:20:41.78
MN.TIP.HHE. ML:1.5 0.0001104 1.62 AML other m 2021-09-24T15:20:42.83
IV.PIPA.HHN. ML:1.5 0.00010225 0.26 AML other m 2021-09-24T15:20:42.34
IV.PIPA.HHE. ML:1.7 0.000151 1.26 AML other m 2021-09-24T15:20:44.35
IV.SERS.HHN. ML:1.4 7.167585E-5 0.4224 AML other m 2021-09-24T15:20:45.86
IV.SERS.HNE. ML:1.6 8.8194695E-5 0.9856 AML other m 2021-09-24T15:20:44.24
IV.SERS.HNN. ML:1.3 4.8483725E-5 0.3072 AML other m 2021-09-24T15:20:45.00
IV.SERS.HHE. ML:1.3 5.184913E-5 0.3072 AML other m 2021-09-24T15:20:45.16
MN.TIP.HNE. ML:1.5 0.000106329275 0.3328 AML other m 2021-09-24T15:20:41.66
MN.TIP.HNN. ML:1.6 0.0001343618 0.3328 AML other m 2021-09-24T15:20:41.79
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download